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二乙基二硫代氨基甲酸盐(DDTC)是分析化学中常用的有机螯合沉淀剂。但它至今还不能直接在水溶液中用作视式滴定剂。Wickbold曾报导用DDTC萃取滴定Cu~(2+)、Cd~(2+)等重金属离子。但要耗用大量的具有刺激性气味的有机溶剂,操作也较麻烦。DDTC虽在安培滴定、电位滴定等一些须用作图法确定终点的分析方法中得到了应用,但不及交流示波极谱滴定法直观、简便。
Diethyldithiocarbamate (DDTC) is a commonly used organic chelating agent in analytical chemistry. However, it has not yet been used as a visual titrant directly in aqueous solution. Wickbold reported using DDTC extraction titration Cu ~ (2 +), Cd ~ (2+) and other heavy metal ions. However, to use a lot of irritating odor of organic solvents, the operation is more troublesome. Although DDTC has been used in some analytical methods, such as amperometric titration and potentiometric titration, which must be used to determine the end point of the graph, it is not as intuitive and convenient as the exchange oscillopolarographic titration.